Question # 1

Multimode step index fiber is useful for.

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Long distance

Sort distance

Very long distance

Infinite distance

Two vector can be added by simple arithmetical method when they are at an angle of.

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120^o

90^o

0^o

45^o

In sonar we use

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Sound waves

Ultrasound waves

Microwaves

Radio waves

A quantity which indicates the state and direction of a vibrating body is known as

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Time period

Amplitude

Phase

Frequency

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Which remains constant in an adiabatic process.

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Volume

Pressure

entropy

temperature

Dot product of two non zero vectors is zero it angle between them is.

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30^o

60^o

45^o

90^o

When the car moves with an increasing acceleration then its velocity time graph is always

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Constant

Variable

A straight line

A curve

A communication satellite is used ot reflect the signal of.

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Microwaves

Radio waves

y rays

x -rays

The acceleration produced by elastic restoring force is

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Perpendicular to force

Opposite to force

In same direction as force

Zero

The resultant of two vectors having magnitude 12 N and 8 N can not be

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2 N

20 N

10 N

16 N

The angle of projection for which its maximum height and horizontal range are equal

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46 ^o

56^o

66^o

76^o

A cycle of petrol engine undergoes

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Two process

Three process

Four process

single process

A wheel of radius 50 cm having an angular speed of a rad /s have linear speed.

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1.5 m/s

3.5 m/s

2.5 m/s

4.5 m/s

The internal energy of a piece of lead when beaten by hammer will.

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Increase

Decrease

Remains constant

Increases and then decrease

Kilo watt hour is the unit of

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Power

Energy

Force

Torque

A spring of spring constant 10 N/m after loading that amplitude is 2m. Then the maximum P.E. is

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10 J

20 J

30 J

40 J

The law of conservation of energy is the basis of.

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Stream line flow

Equation of continuity

Bernoulli's equation

Venture relation

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11th Class Part 1 Physics Test Online MCQs With Answers

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